Biotechnology Letters, Vol.23, No.17, 1429-1433, 2001
Immobilization of lipase by salts and the transesterification activity in hexane
Lipases from six different sources were immobilized on Celite and five types of salt. The transesterification activities in hexane for lipases immobilized on EDTA-Na-2 increased by 463% for the lipase from Candida rugosa (CRL), 2700% for the lipase from Candida sp. (CSL) and 1215% for the lipase from Pseudomonas sp. (PSL), compared to the salt-free enzyme. With 0.5% sucrose for CRL or 1% sorbitol for PSL as the lyoprotectant during lyophilization process, transesterification activity increased by 100% and 13%, respectively, compared to the immobilized enzyme on EDTA-Na-2 without lyoprotectant.